METHOD AND DEVICE FOR MONITORING A PARTICULATE FILTER

A method for monitoring a particulate filter in the exhaust duct of an internal combustion engine operated with gasoline, as a device for implementing the method are described. A first exhaust-gas temperature is determined upstream of the particulate filter and a second exhaust-gas temperature is de...

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Bibliographische Detailangaben
Hauptverfasser:	Winkler Klaus, Handler Torsten, Willimowski Markus, Baars Enno, Zein Thomas
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A method for monitoring a particulate filter in the exhaust duct of an internal combustion engine operated with gasoline, as a device for implementing the method are described. A first exhaust-gas temperature is determined upstream of the particulate filter and a second exhaust-gas temperature is determined downstream from the particulate filter, and a presence and/or a correct functioning of the particulate filter is inferred from a difference between the first and the second exhaust-gas temperature or from a differing time characteristic curve of the first and the second exhaust-gas temperature.